Notes
Slide Show
Outline
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A Home Networking Primer
  • Ewing Seniornet
  • David Shinkfield
  • June 2006
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You’ve seen the hype!
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Our discussion today
  • What is a Home network?
  • What are the benefits of a Home network?
  • What equipment is needed to build a Home Network?
  • Buying any additional equipment you need
  • Which technology (wired or wireless) is best for my Home Network
  • Setting up your Home Network
  • How can a wireless network be secured?
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What is a Home network?
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What is a Home network?
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What is a Home network?
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What is a Home network?
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Our discussion today
  • What is a Home network?
  • What are the benefits of a Home network?
  • What equipment is needed to build a Home Network?
  • Buying any additional equipment you need
  • Which technology (wired or wireless) is best for my Home Network
  • Setting up your Home Network
  • How can a wireless network be secured?
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What are the benefits of a Home network?
  • With home networking, you can:
  • Share one Internet connection with all of the computers on the network.
  • Share printers with all of the computers on the network.
  • Work on files stored on any computer on the network.
  • Use one computer to secure your entire network and protect your Internet connection.
  • Play multiplayer games.
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Our discussion today
  • What is a Home network?
  • What are the benefits of a Home network?
  • What equipment is needed to build a Home Network?
  • Buying any additional equipment you need
  • Which technology (wired or wireless) is best for my Home Network
  • Setting up your Home Network
  • How can a wireless network be secured?
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How it comes together
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What equipment is needed to build a Home Network?
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What equipment is needed to build a Home Network?
  • Sketch out your network, showing each computer and printer.
  • Next to each computer, note the hardware, such as modems and network adapters, installed on each computer.
  • Determine the type of network adapters, if any, you need for your network
  • Make a list of hardware that you need to buy.
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What equipment is needed to build a Home Network?
  • If you have a dial up connection, you will already have the modem installed in your computer
  • All recent computers will have Network Adapters already installed
  • If you have broadband (Verizon or Comcast), you will already have a modem
  • Also, Verizon provides the router and cables with their DSL or FIOS broadband connection
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Our discussion today
  • What is a Home network?
  • What are the benefits of a Home network?
  • What equipment is needed to build a Home Network?
  • Buying any additional equipment you need
  • Which technology (wired or wireless) is best for my Home Network
  • Setting up your Home Network
  • How can a wireless network be secured?
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Buying any additional equipment you need
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Routers
  • Wireless routers have different “speeds” – B, G or A
    • B is an older specification. It is slow and routers with wireless B are very inexpensive
    • G is the current specification.
    • A is primarily for business
  • Match your router to your laptop
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How it comes together
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Our discussion today
  • What is a Home network?
  • What are the benefits of a Home network?
  • What equipment is needed to build a Home Network?
  • Buying any additional equipment you need
  • Which technology (wired or wireless) is best for my Home Network
  • Setting up your Home Network
  • How can a wireless network be secured?
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Wired or wireless
  • Wired Pluses
  • Easier to set up
  • Perhaps more secure?
  • Routers less expensive
  • Wired Minuses
  • The cabling
  • Wireless Pluses
  • Works all over the house
  • Friends can easily connect – with your permission
  • Wireless Minuses
  • Needs more security settings
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Our discussion today
  • What is a Home network?
  • What are the benefits of a Home network?
  • What equipment is needed to build a Home Network?
  • Buying any additional equipment you need
  • Which technology (wired or wireless) is best for my Home Network
  • Setting up your Home Network
  • How can a wireless network be secured?
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Setting up your Home Network
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Setting up your Home Network
  • Connect ONLY the first wired computer to the Router and the Router to the Modem
  • Access the Router and set the connection method.
    • Verizon DSL uses PPPOE. You will need your user ID and password
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Router security
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Setting up your Home Network
  • Next,
  • Click “Start” and “My Network Places”
  • Under Network Tasks on the left, select “Set up a home or small office network”
  • Follow the Wizard, and write down the settings
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Setting up your Home Network
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Setting up your Home Network
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Setting up your Home Network
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Setting up your Home Network
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Setting up your Home Network
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Setting up your Home Network
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Setting up your Home Network
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Setting up your Home Network
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Setting up your Home Network
  • When the first computer connects to the Internet, connect the second computer, and run the appropriate Wizard
    • For wired computers - “Set up a home or small office network”
    • For wireless computers – “Set up a wireless network for home or small office”
  • When both computers connect to the Internet, set up Security Settings and File and Printer Sharing


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Our discussion today
  • What is a Home network?
  • What are the benefits of a Home network?
  • What equipment is needed to build a Home Network?
  • Buying any additional equipment you need
  • Which technology (wired or wireless) is best for my Home Network
  • Setting up your Home Network
  • How can a wireless network be secured?
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How can a wireless network be secured?
  • Computer security
  • Router security
  • Wireless Security
  • Sharing printers and files
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Computer security
  • Make sure that you have all the latest Microsoft patches installed.
  • Make sure that your Virus protection is installed and that it is regularly updated
  • Install a good software firewall
  • Check status with Windows Security Center
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Windows Security Center
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Computer security
  • Make sure that you have all the latest Microsoft patches installed.
  • Make sure that your Virus protection is installed and that it is regularly updated
  • Install a good software firewall
  • Check status with Windows Security Center


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Router security
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Router security
  • The router comes with a set up screen, which you access using 192.168.1.1 in the address bar of your browser, and then entering a password
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Router security
  • The default passwords for routers are well known - mine was Admin. You need to change this to something that will prevent someone accessing your network from gaining access to the settings.
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Router security
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Router security
  • You can only set up the Router through a computer that is connected to the Router by a wire.
  • Once the Router is set, the computer can be unplugged and used wirelessly if necessary.
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Wireless Security
  • The key requirement for wireless security is to stop others from accessing your network.


  • Have a hardware firewall in addition to your software firewall
  • Encrypt all data traffic between the wireless computer and the router
  • Protect that encryption with network names and passwords
  • Prevent the network broadcasting its name to the world
  • Only authorize access to named computers
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Wireless Security
  • Your Router should include an SPI and NAT firewall.
  • Make sure that it is turned on
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Wireless Security
  • Give a name for the network.
  • This is the SSID.
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Wireless Security
  • Set the Security Mode to WPA or better yet, WPA2.
  • Set WPA Algorithms to TKIP
  • Set the WPA Shared Key.
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Wireless Security
  • Finally, only authorize access to named computers


  • Set a MAC Filter for all computers using the wireless network.
  • Each computer has a unique identification number called the MAC Address.
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Wireless Security
Finding the MAC Address
  • Go to Start, and then Run.
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Wireless Security
Finding the MAC Address
  • Type CMD in the box and a window will open.
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Wireless Security
Finding the MAC Address
  • At the flashing cursor, type ipconfig/all and hit Enter.
  • You will see information including Physical Address in the form of 00-01-AX-B3-DY-71
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Wireless Security
Finding the MAC Address
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Wireless Security
Finding the MAC Address
  • Now back to the Router
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Wireless Security
Finding the MAC Address
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Wireless Security
  • The final step in the process is to make sure that you set up identical settings on the laptop or wireless computer
    • the same Mode,
    • the same SSID and
    • the same shared key
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Sharing printers and files
  • If you plan to access files or a printer between computers, you will need to allow Sharing for the Printer and the appropriate folders
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Sharing printers and files
  • Check “Share the printer”
  • Give the shared printer a descriptive name
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Sharing printers and files
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Sharing printers and files
  • If you share folders, you will need to tell Zone Alarm that to allow the access.


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Sharing printers and files
  • Select the Zone tab at the top.
  • Click Add
  • Select IP Range.
  • Enter a range such as 192.168.1.100 to 192.168.1.103
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Now it all works!!